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Nookie1986 [14]

3 years ago

12

A car drives around a curve that has a radius of 190 m with a speed of 33 m/s. If the car has a mass of 625 kg what will be the

amount of force felt by the car?
20625N

2874.45N

3582.24

108.55

1 answer:

sattari [20]3 years ago

8 0

Explanation:

a car exccelerate at rate of 3.0m/sec 2

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John throws a ball with a velocity of 30 m/s at an angle of 60 degrees. What is the horizontal component of the velocity?

umka21 [38]

The horizontal component of the velocity is equal to: D. 15 m/s.

<u>Given the following data:</u>

Velocity = 30 m/s

Angle = 60°

To determine the horizontal component of the velocity:

The horizontal component of the velocity represents the influence of velocity in displacing an object or projectile in the horizontal direction.

Mathematically, the horizontal component of velocity is given by the formula:

$V_x = Vcos(\theta)$

Substituting the given parameters into the formula, we have;

$\\\\V_x = 30cos(60)\\\\V_x = 30 \times 0.5$

Horizontal component, Vx = 15 m/s

Read more on horizontal component here: brainly.com/question/24681896

6 0

3 years ago

A truck’s suspension spring each have a spring constant of 769 N/m. If the potential energy of the right front spring is 250 J,

Alex Ar [27]

Answer:

x = 0.81 m

Explanation:

given,

spring constant, k = 769 N/m

Potential energy of the spring = 250 J

distance of spring compression = ?

using conservation of energy

potential energy will equal to the spring energy

$PE = \dfrac{1}{2}kx^2$

$250= \dfrac{1}{2}\times 769\times x^2$

x² = 0.650

x = 0.81 m

Hence, the spring is compressed to 0.81 m

6 0

3 years ago

What percent of air by volume is nitrogen

nlexa [21]

Answer:

78 percent

Explanation:

I guess that's the right answer

5 0

3 years ago

108J of work was done on a closed sysem. During this phase of the experiment, 79J of heat was added to the system.What was the t

skelet666 [1.2K]

The change in internal energy of the system is +187 J

Explanation:

According to the first law of thermodynamics, the change in internal energy of a system is given by the equation:

$\Delta U = Q + W$

where

$\Delta U$ is the change in internal energy

Q is the heat absorbed by the system

W is the work done on the system

For the system in this problem, we have

W = +108 J is the work done on it

Q = +79 J is the hear added to it

So, the change in internal energy is

$\Delta U = 108 + 79 = +187 J$

Learn more about thermodynamics here:

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#LearnwithBrainly

7 0

3 years ago

Kathy tests her new sports car by racing with Stan, an experienced racer. Both start from rest, but Kathy leaves the starting li

Alekssandra [29.7K]

Answer:

time at which Kathy overtakes Stan is 6.70 sec

Explanation:

given data

time = 1 sec

acceleration= 3.4 m/s²

acceleration = 4.49 m/s²

to find out

the time at which Kathy overtakes Stan

solution

we consider here travel time for kathy = t1

and travel time for stan is = t2

and we know initial velocity = 0

so

t1 = 1 + t2

and distance travel equation by kinematic is

d1 = ut + $\frac{1}{2}$ at²

d1 = 0+ $\frac{1}{2}$ 4.49 (t2)² ................1

and

d2 = 0 + $\frac{1}{2}$ 3.4 (1+t2)² ..................2

and when overtake distance same so from equation 1 and 2

$\frac{1}{2}$ 4.49 (t2)² = $\frac{1}{2}$ 3.4 (1+t2)²

t2 = 6.703828 sec

so time at which Kathy overtakes Stan is 6.70 sec

3 0

3 years ago